CN203223065U

CN203223065U - Lock cylinder of spring lock

Info

Publication number: CN203223065U
Application number: CN 201320136252
Authority: CN
Inventors: 沈雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2013-10-02
Anticipated expiration: 2023-03-25

Abstract

The utility model discloses a lock cylinder of a spring lock. The lock cylinder comprises a lock cylinder sleeve, an inner lock cylinder provided with a keyhole, an outer lock cylinder provided with an unlocking toggle piece, a plurality of locking spring groups and a plurality of locking spring mounting holes capable of mounting the locking spring groups, wherein each spring group consists of a first locking spring, a second locking spring, a third locking spring and a spring; each mounting hole comprises an inner lock cylinder locking spring hole formed in the inner lock cylinder, an outer lock cylinder locking spring hole formed in the outer lock cylinder, and a lock cylinder sleeve locking spring hole formed in the lock cylinder sleeve; each third locking spring consists of a plurality of small locking springs; the inner lock cylinder is provided with a radial hole through which a swing link is capable of being inserted; at least one end of the swing link penetrates through a slot of the outer lock cylinder and then extends in a sliding groove in the inner wall of the lock cylinder sleeve, and the swing link can slide relative to the sliding groove; when the inner lock cylinder is twisted to the swing link by a matched key so as to abut against the side wall of the slot, the outer lock cylinder can be driven to rotate, and the spring lock can be prevented from being prized up through the composition manner of the small locking springs of the third locking springs, so that the spring lock has better anti-theft performance.

Description

Cylinder of spring lock

Technical field

The utility model relates to a kind of lock core of cylinder lock.

Background technology

The lock core of traditional cylinder lock generally comprises the lock core cover, is with internal cylinder and the pellet shot from a slingshot group of the shifting part of unblanking, the quality of fit of the lock core of this structure is lower, generally need to reduce by the quantity that increases the pellet shot from a slingshot group unlocking rate of tinfoil or master key etc., theftproof performance is relatively poor.

For this reason, China Patent No. be " ZL200710144843.9 " patent disclosure a kind of double layer spring lock core, it sets up outer lock core between internal cylinder and lock core cover, and arrange greatlyyer in the chamfering of an end of close internal cylinder the cylinder lock between internal cylinder and the outer lock core, during use, the key that carries by insertion also makes internal cylinder and outer lock core rotates simultaneously and can realize unblanking, and picking lock person attempt is when unblanking by trials such as tinfoil or master keys, because tinfoil or master key and lock core do not match, appearance only has internal cylinder to rotate the situation that outer lock core does not change easily, at this moment, cylinder lock can't be opened, thereby improves the theftproof performance of cylinder lock.But the theftproof performance of double layer spring lock core of planting structure a bit is still not ideal enough.

Summary of the invention

The purpose of this utility model is to provide a kind of theftproof performance better cylinder of spring lock.

Cylinder of spring lock described in the utility model, comprise the lock core cover, be provided with the internal cylinder of keyhole, be provided with the outer lock core of the shifting part of unblanking, a plurality of pellet shot from a slingshot groups and a plurality of pellet shot from a slingshot installing hole that the pellet shot from a slingshot group is installed, wherein, each pellet shot from a slingshot group is by first pellet shot from a slingshot, second pellet shot from a slingshot, the 3rd pellet shot from a slingshot and spring are formed, installing hole is by the internal cylinder pellet shot from a slingshot hole that is arranged on the internal cylinder, be located at the outer lock core pellet shot from a slingshot hole on the outer lock core, and be arranged on the lock core sleeving marble hole that lock core puts and form, it is characterized in that: described the 3rd pellet shot from a slingshot is made up of a plurality of submissile, described internal cylinder is provided with the radial hole that can insert fork, fork stretches in the chute of lock core cover inwall after having at least one end to pass the slotted eye of outer lock core, and can move relative to chute, when key that internal cylinder is mated reverse offset to the sidewall of fork and slotted eye after, can drive outer lock core and rotate.

The 3rd pellet shot from a slingshot of the present utility model adopts the molecular mode of a plurality of submissiles, when unblanking, the key that earlier lock core is carried coupling inserts keyhole, the little pellet shot from a slingshot of anticipated number is gone into outer lock core pellet shot from a slingshot hole from the hole jacking of internal cylinder pellet shot from a slingshot, all pellets shot from a slingshot all are in correctly to unblank institute's preposition; Then reverse key, the sidewall that makes internal cylinder turn to the slotted eye of fork and outer lock core offsets, and this moment, outer lock core then can rotate with internal cylinder under fork drives together, until the shifting part of unblanking the dead bolt of cylinder lock was stirred the position of unblanking, and namely realized unblanking; And picking lock person attempt is when doing exploratory unblanking with picklocks such as tinfoil or master keys, because the 3rd pellet shot from a slingshot is molecular by a plurality of submissiles, so even picklocks such as the tinfoil of insertion keyhole or master key fail to head into the little pellet shot from a slingshot of predetermined quantity under the situation of outer lock core from internal cylinder, the twisting picklock still can make internal cylinder rotate, but do not reached predetermined quantity owing to head into the little pellet shot from a slingshot in outer lock core pellet shot from a slingshot hole, so second pellet shot from a slingshot of the 3rd pellet shot from a slingshot top and first pellet shot from a slingshot not by jacking to the institute's preposition of correctly unblanking, at this moment, first pellet shot from a slingshot or second pellet shot from a slingshot will be stuck between lock core sleeving marble hole and the outer lock core pellet shot from a slingshot hole, causing fork can't drive outer lock core is rotated further, guarantee that cylinder lock can not pried open, have better theftproof performance.

Description of drawings

Fig. 1 is the sectional view behind the insertion key of the present utility model.

Fig. 2 is the sectional view of the utility model when pellet shot from a slingshot hole and spring are not installed.

Fig. 3 is internal cylinder when not rotating, and Fig. 1 is along the sectional view of A-A direction.

Fig. 4 is internal cylinder when not rotating, and Fig. 1 is along the sectional view of B-B direction.

Fig. 5 is that Fig. 1 was along the sectional view of A-A direction after internal cylinder was rotated.

Fig. 6 is that Fig. 1 was along the sectional view of B-B direction after internal cylinder was rotated.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 4 and shown in Figure 6, described cylinder of spring lock, be installed on the lock body, comprise lock core cover 1, be provided with the internal cylinder 2 of keyhole 21, be provided with the outer lock core 3 of the shifting part 31 of unblanking, a plurality of pellet shot from a slingshot groups and a plurality of pellet shot from a slingshot installing hole that the pellet shot from a slingshot group is installed, wherein, each pellet shot from a slingshot group is by first pellet shot from a slingshot 4, second pellet shot from a slingshot 5, the 3rd pellet shot from a slingshot 6 and spring 7 are formed, installing hole is by the internal cylinder pellet shot from a slingshot hole 22 that is arranged on the internal cylinder 2, be located at the outer lock core pellet shot from a slingshot hole 32 on the outer lock core 3, and the lock core sleeving marble hole 11 that is arranged on the lock core cover 1 is formed, described the 3rd pellet shot from a slingshot 6 is made up of a plurality of submissile, described internal cylinder 2 is provided with the radial hole that can insert fork 8, fork 8 has at least one end to pass to stretch into behind the slotted eye 33 of outer lock core 3 in the chute 12 that lock core overlaps 1 inwall (situation in the chute is all stretched at the two ends that are illustrated in figure 3 as fork), and can move relative to chute 12, when key (not shown) that internal cylinder 2 is mated reverse offset to the sidewall of fork 8 and slotted eye 33 after, can drive outer lock core and rotate.

The quantity of the little pellet shot from a slingshot of described composition the 3rd pellet shot from a slingshot 6 can be set as required, as it is two, three, four, five, six, seven etc., be illustrated in figure 1 as four situation, the length of each little pellet shot from a slingshot can be set as required, the length of each submissile 6 can equate, also can be unequal; Equally, the length of each first pellet shot from a slingshot 4 and second pellet shot from a slingshot 5 also can be set as required.

As Fig. 1, Fig. 3, shown in Figure 5, the sidewall of described internal cylinder 2 is provided with depression 23, the surface of depression 23 is inclined plane or the arcwall face that raises to both sides from the center, lock core cover 1 and outer lock core 3 are provided with corresponding hole so that back-moving spring 13 to be installed, the 4th pellet shot from a slingshot 14 and the 5th pellet shot from a slingshot 24 that can stretch into depression 23, when fork 8 turns to sidewall with slotted eye 33 when offseting with internal cylinder 2, the 5th pellet shot from a slingshot 24 is in the precalculated position (see figure 5) of unblanking required by depression 23 surperficial jacking to the four pellets shot from a slingshot 14 and the 5th pellet shot from a slingshot 24, and the sidewall that does not go to fork 8 and slotted eye 33 when internal cylinder 2 is when offseting, 24 of the 5th pellets shot from a slingshot are stuck in (see figure 3) between outer lock core 3 and the lock core cover 1, can further improve theftproof performance and the structural strength of cylinder of spring lock.

As Fig. 1, Fig. 3, shown in Figure 5, in order to extract the key (not shown) easily out, the inside wall of described outer lock core 3 is provided with recess 34, the surface of recess 34 is inclined plane or the arcwall face that raises to both sides from the center, internal cylinder 2 is provided with containing hole so that the top spring 25 that the 6th pellet shot from a slingshot 26 can be headed into recess 34 to be installed, in the time of key need being extracted out from keyhole, can by key reverse internal cylinder 2 to its internal cylinder pellet shot from a slingshot hole 22 and lock core sleeving marble hole 11 relative positions, at this moment, the 6th pellet shot from a slingshot 26 is under the effect of top spring 25, move to low level from the high position on recess 34 surfaces, it is relative with lock core sleeving marble hole 11 with internal cylinder pellet shot from a slingshot hole 22 that thereby promotion outer lock core 3 turns to its outer lock core pellet shot from a slingshot hole 32, can extract key easily out.

Described fork 8 is interference fits or matched in clearance with radial hole.

Claims

1. cylinder of spring lock, comprise lock core cover (1), be provided with the internal cylinder (2) of keyhole (21), be provided with the outer lock core (3) of the shifting part of unblanking (31), a plurality of pellet shot from a slingshot groups and a plurality of pellet shot from a slingshot installing hole that the pellet shot from a slingshot group is installed, wherein, each pellet shot from a slingshot group is by first pellet shot from a slingshot (4), second pellet shot from a slingshot (5), the 3rd pellet shot from a slingshot (6) and spring (7) are formed, installing hole is by the internal cylinder pellet shot from a slingshot hole (22) that is arranged on the internal cylinder (2), be located at the outer lock core pellet shot from a slingshot hole (32) on the outer lock core (3), and the lock core sleeving marble hole (11) that is arranged on the lock core cover (1) is formed, it is characterized in that: described the 3rd pellet shot from a slingshot (6) is made up of a plurality of submissile, described internal cylinder (2) is provided with the radial hole that can insert fork (8), fork (8) stretches in the chute (12) of lock core cover (1) inwall after having at least one end to pass the slotted eye (33) of outer lock core (3), and can move relative to chute (12), when internal cylinder (2) reversed by the key that mated offset to the sidewall of fork (8) and slotted eye (33) after, can drive outer lock core and rotate.

2. cylinder of spring lock according to claim 1 is characterized in that: described the 3rd pellet shot from a slingshot (6) is made up of 2～7 submissiles.

3. cylinder of spring lock according to claim 1, it is characterized in that: the sidewall of described internal cylinder (2) is provided with depression (23), the surface of depression (23) is inclined plane or the arcwall face that raises to both sides from the center, lock core cover (1) and outer lock core (3) are provided with corresponding hole so that back-moving spring (13) to be installed, the 4th pellet shot from a slingshot (14) and can stretch into the 5th pellet shot from a slingshot (24) of depression (23), when fork (8) turns to sidewall with slotted eye (33) when offseting with internal cylinder (2), caved in (23) surperficial jacking to the four pellets shot from a slingshot (14) and the 5th pellet shot from a slingshot (24) of the 5th pellet shot from a slingshot (24) is in the required precalculated position of unblanking.

4. cylinder of spring lock according to claim 1, it is characterized in that: the inside wall of described outer lock core (3) is provided with recess (34), the surface of recess (34) is inclined plane or the arcwall face that raises to both sides from the center, and internal cylinder (2) is provided with containing hole so that the top spring (25) that the 6th pellet shot from a slingshot (26) can be headed into recess (34) to be installed.

5. cylinder of spring lock according to claim 1 is characterized in that: described fork (8) is interference fits or matched in clearance with radial hole.